RU53524U1 - SYSTEM OF SPEED REGISTRATION OF IMAGES - Google Patents

Abstract

Usage: In television technology, namely in high-speed digital video systems for transmitting and processing video signals of fast processes.

Creature: The system comprises an electron-optical unit, an information reception and processing unit, a flash lamp and optically coupled laser emitter and a photosensor mounted on a line intersecting the path of the registered object, while the electron-optical unit contains a video camera, input and projection lenses , connectors, interface module, power supply and electron-optical converter, the optical input of which is connected through the input lens with the image register object, and the output is through a projection lens with an optical input of a video camera connected via a communication cable to the controller of the information reception and processing unit, a programmable high-voltage power supply and series-connected programmable delay time delay generator, programmable multiple exposure pulse shaper, programmable shutter pulse shaper and driver of a high-voltage nanosecond gate pulse, interface input the module is connected through an appropriate connector with a communication cable, and the output is connected to the information inputs of a programmable high-voltage power supply source, a programmable shaper of delay time intervals, a programmable pulse shaper of multiple exposure and a programmer shaper of a shutter pulse duration, and the output of a programmable high-voltage power supply connected to the control input of the shaper high voltage nanosecond gate impu of ice, the output of which is connected to the gate of the electron-optical converter, and the trigger input of the programmable driver of the time intervals of the delay is connected to the input "START" connected to one of the outputs of the photosensor, the other output of which is connected to the synchronization input of the flash lamp, the control input of which is connected through a communication cable with the controller of the unit for receiving and processing information.

Description

The utility model relates to television technology and can be used in high-speed digital video systems for transmitting and processing video signals of fast processes.

A device based on a photodetector CCD matrix [1] (CCD is a charge-coupled device) comprising a lens and a series-connected photodetector CCD with an anti-blooming device located in the focal plane of the lens, a video signal amplification and processing unit, and a photodetector CCD control unit a matrix whose output is connected to the control buses of the photodetector of the CCD matrix, and an optical filter of variable density is additionally introduced in front of the lens, which changes the transmittance depending on and intensity of the incident radiation flux.

The disadvantage of this device is its limited capabilities, since it does not provide means for the operational settings.

A video camera [2] is also known, which contains an optical video information receiving unit, the output of which is connected to the input of the analog video to digital video conversion unit, the output of which is connected via a common bus to the input of the temporary data storage RAM unit, to which the digital signal processing processor unit is connected, having data input-output devices, a removable block of read-only memory data storage, associated with the processor unit and the temporary storage data storage unit, a video control unit, and it is also a digital video compression unit, and the video camera is equipped with audio and video compression units connected to a common bus with MPEG-2 compression, a video camera control controller, a digital audio and video signal decoder with MPEG-2 decompression, and an additional removable memory memory storage controller data, an interface controller for connecting to computer devices

data processing or data storage devices and a stationary monitor, and connected via a common bus with the processor unit and the video camera control controller to a memory program with video processing software output to a video control unit made in the form of a monitor rotatably fixed to the camera body, while the unit for converting analog video to digital is made on high-resolution matrices with the conversion of the incoming signal into a digital data stream by SDTV protocol, the compression unit for the digital video signal coming from the analog video to digital video conversion unit is designed as an encoder with digital data compression using MPEG-2 technology, while the input of the encoder is connected to the corresponding output of the analog video to digital conversion unit.

A disadvantage of the known device is its complexity, due to the large number of functional blocks included in it.

The closest in technical essence to the proposed utility model is the well-known high-speed digital video recording system [3], containing a video camera, the output of which is connected via a video signal transmission channel (communication cable) to the controller of the information reception and processing unit, a video control unit, an electron-optical unit, the structure of which includes an interface module and a power source, a switching and distribution unit containing connecting electrical connectors and an optical connector associated with video Amer and fiber-optic communication cable, is connected on one side to an optical connector, and the other - to the unit receiving and processing information.

The device’s operation is based on the synchronous triggering of a flash lamp by a signal from a photosensor optically coupled to a laser emitter, installed on a line crossing the path of a registered object, while the electron-optical unit contains a video camera, input and projection lenses, connecting sockets, an interface module, a power source and an electron-optical converter, the optical input of which is connected through the input lens with the image of the registered object, and the output is through ithout a projection lens

optical input of a video camera connected via a communication cable to the controller of the unit for receiving and processing information

The disadvantages of such a system are limited functionality, since it does not provide means for efficient and operational management of system parameters during high-speed video recording.

The technical result, which consists in eliminating the noted drawback, is achieved in the proposed system for high-speed image registration containing an electronic-optical unit, an information receiving and processing unit, a flash lamp and optically coupled laser emitter and a photo sensor installed on a line intersecting the trajectory of the registered object wherein the electron-optical unit contains a video camera, input and projection lenses, connectors, an interface module, an electronic source power supply and an electron-optical converter, the optical input of which is connected through an input lens with an image of the object being registered, and the output is through a projection lens with an optical input of a video camera connected via a communication cable to the controller of the information reception and processing unit, in that the electron-optical block contains programmable high-voltage power supply and series-connected programmable driver of delay time intervals, programmable pulse driver multiple exposures, a programmable gate pulse width driver and a high-voltage nanosecond gate pulse driver, an interface module input is connected via a corresponding connecting connector to a communication cable, and the output is connected to the information inputs of a programmable high-voltage power supply, programmable delay time interval shaper, programmable multiple exposure pulse shaper and programmable shutter duration driver mpulsa, the output of the programmable high voltage power source connected to the control input of the high-voltage nanosecond pulse gate whose output is connected to the gate of the electron-optical converter,

and the triggering input of the programmable driver of the delay time intervals is connected to the “START” input connected to one of the outputs of the photosensor, the other output of which is connected to the synchronization input of the flash-flash lamp, the control input of which is connected via the communication cable to the controller of the information reception and processing unit.

The essence of the utility model is illustrated by drawings, where:

- figure 1 shows the structural diagram of the system;

- figure 2 shows a block diagram of an electron-optical block used in the proposed system.

The system (Fig. 1) contains an electron-optical unit 1, an information receiving and processing unit 2, a flash lamp 3 and optically coupled laser emitter 4 and a photosensor 5 mounted on a line intersecting the trajectory of the recorded object 6 (projectile or bullet) . Figure 1 also shows the barrel 7, from which the projectile flies.

The electron-optical unit 1 (figure 2) contains a video camera, input 9 and projection 10 lenses, connectors 11 and 12, an interface module 13, a power supply 14 and an electron-optical converter 15, the optical input of which is connected through an input lens 9 to the image the registered object 6, and the output through the projection lens 10 with the optical input of the video camera 8 connected via a communication cable 16 to the controller 17 of the information receiving and processing unit 2.

The power source 14 is connected through a connecting connector 12 with an external power source (not shown). The power supply source 14 is designed to power the functional blocks and nodes included in the system.

Block 1 also contains a programmable high-voltage power supply 18 and series-connected programmable driver 19 time intervals of delay, programmable driver 20 pulses of multiple exposure, programmable driver 21 of the duration of the gate pulse and driver 22 of the high-voltage nanosecond gate pulse.

The input of the interface module 13 is connected through a connecting connector 11 to the communication cable 16, and the output is connected to the information inputs of a programmable high-voltage power supply 18, programmable driver 19 of the delay time intervals, programmable driver 20 of multiple exposure pulses and programmer driver 21 of the gate pulse duration, the output of the programmable high-voltage power source 18 is connected to the control input of the shaper 22 of the high-voltage load kundnogo gate pulse, the output of which is connected to the shutter of the electron-optical Converter 15.

The triggering input of the programmer driver 19 delay time intervals is connected to the “START” input 23 connected to one of the outputs of the photo sensor 5, the other output of which is connected to the synchronization input of the flash lamp 3, the control input of which is connected via the communication cable 16 to the controller 17 of the unit 2 receiving and processing information.

The system operates as follows.

The basis of the system is an electron-optical converter (EOF) 15 with a nanosecond shutter and a digital video camera 8, which provide registration of an image of an object 6 moving at a high speed (projectile or bullet) with an exposure time of up to 10 ^-8 s.

When shooting a fast-moving process, the proposed device implements the method of synchronous high-speed shooting. A laser 7 optically coupled to the photosensor 5 is placed near the projectile flight path in a specific location (for example, at a certain distance from the target).

Shooting at short exposures is performed by illuminating the object, which is performed by the flash lamp 3. The flash lamp 3 is launched synchronously by a signal from the photosensor 5 at the moment the object appears in the field of view of the input lens 9.

Fine adjustment of the shutter lag of the shutter EOP 15 determines the moment of shooting and is selected from the estimated time of the appearance of the object at a given point.

Using the system for shooting objects whose movement can occur at different speeds requires the possibility of changing (programming) the exposure time over a fairly wide range.

After turning on the system, the operator, using the information receiving and processing unit 2 (computer) and special software, installs all the device parameters into programmable modules 18, 19, 20, and 21 through the communication cable 16 and interface module 13.

These parameters include:

- the value of the delay in starting the flash lamp;

- the value of the delayed response of the driver of the gate pulse in the driver 13;

- parameters of pulses of multiple exposure (pulse duration and the interval between pulses) in the shaper 20;

- the value of the duration of the gate pulse (exposure time) in the shaper 21;

- the value of the gain of the image intensifier tube 15 (voltage at source 18).

When the projectile 6 passes, the photosensor 5 generates a control signal for the flash lamp - flash 3 and the “START” signal supplied to the input 23 of block 1. The image of the moving object recorded by the video camera 1 is converted into a video signal and transmitted through a connecting connector 11, communication cable 16 and controller 17 in block 2, where it is processed according to a special program and recorded in memory.

Camera 8 can be synchronized from an external clock pulse or from block 2 (program start).

The volume of the buffer memory of block 2 can be more than 16 GB, which ensures the recording of images of objects with the necessary discreteness and fairly high quality.

The system for high-speed image registration is implemented on the basis of blocks and nodes of digital computing equipment and is in serial production.

Information sources:

1. RF patent for utility model No. 32347, M. Cl. H 04 N, 5/235, published. 2003.

2. Certificate of the Russian Federation for utility model No. 11433, M.Kl. H 04 N, 1/00, published. 1999.

3. RF patent for utility model No. 49405, M.Kl. H 04 N, 5/235, published. 2005.

Claims (1)

A high-speed image recording system comprising an electron-optical unit, an information reception and processing unit, a flash lamp and optically coupled laser emitter and a photo sensor installed on a line intersecting the path of the registered object, while the electron-optical unit contains a video camera, an input and projection lenses, connectors, interface module, power supply and electron-optical converter, the optical input of which is connected through the input volume a camera with an image of a registered object, and the output is through a projection lens with an optical input of a video camera connected via a communication cable to a controller of an information receiving and processing unit, a programmable high-voltage power supply and series-connected programmable delay time interval shaper, programmable multiple exposure pulse shaper, programmable shaper gate pulse duration and high-voltage nanosecond gate driver pulse, the input of the interface module is connected through a corresponding connector with a communication cable, and the output is connected to the information inputs of a programmable high-voltage power supply, a programmable driver of time delay intervals, a programmable driver of pulses of multiple exposure and a programmable driver of the duration of the gate pulse, and the output of the programmable high-voltage power supply is connected to the control input of the high-voltage driver a nosecond gate pulse, the output of which is connected to the shutter of the electron-optical converter, and the trigger input of the programmable driver of the delay time intervals is connected to the “START” input connected to one of the outputs of the photosensor, the other output of which is connected to the synchronization input of the flash-flash lamp, the control input which is connected via a communication cable to the controller of the unit for receiving and processing information.